一、leetcode的算法题

package mainimport (    "fmt"    "strings")func lengthOfNonRepeatingSubStr(s string)int{    lastOccurred :=make(map[rune]int)    start:=0    maxLength:=0    //将字符串转成 ASCII 码的切片，循环获取下标与值    for i,ch:=range []rune(s){        if lastI,ok:=lastOccurred[ch];ok && lastI>=start{            start=lastOccurred[ch]+1        }        if i-start+1>maxLength {            maxLength=i-start+1        }        lastOccurred[ch]=i    }    return maxLength}func main() {    fmt.Println(        lengthOfNonRepeatingSubStr("abcabcbb"),        lengthOfNonRepeatingSubStr("bbbbb"),        lengthOfNonRepeatingSubStr("阿斯顿法国规划开发阿斯顿发放"))    fmt.Println([]byte("asfsawersd"))    str1:="sdfsad asdfsadf sad;fasfd"    s:=strings.Fields(str1)    for index,value:=range s {        fmt.Println(index,value)    }}

二、普通测试代码

package mainimport "testing"func TestSubstr(t *testing.T)  {    tests:=[]struct{        s string        ans int    }{        {
    "abssafds",4},        {
    "pwwkew",3},        {
    "",0},        {
    "b",1},        {
    "bbbbbbbb",1},        {
    "asadfasdf",4},    }    for _,tt:=range tests {        actual:=lengthOfNonRepeatingSubStr(tt.s)        if actual !=tt.ans{            t.Errorf("got %d for input %s:"+"expected %d",actual,tt.s,tt.ans)        }    }}#测试通过#=== RUN   TestSubstr#--- PASS: TestSubstr (0.00s)#PASS#测试错误#修改错误的数据{"pwwkew",2},#=== RUN   TestSubstr#--- FAIL: TestSubstr (0.00s)#    leetcode_test.go:21: got 3 for input pwwkew:expected 2#FAIL

三、性能测试代码

func BenchmarkSubstr(b *testing.B){    s:="黑化肥挥发发灰会花飞灰化肥挥发发黑会飞花"    ans:=8    for i:=0;i